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Two green 240-pin Ddr3 memory sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR3 1333 CL9 OptiPlex 390 A79

SKU CH-N1C0-G4WVH

A 4 GB dual-channel DDR3 kit running at 1333 MHz CL9, validated for the Dell OptiPlex 390

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • Guaranteed compatibility with Dell OptiPlex 390 systems
  • 4 GB total capacity in a 2 x 2 GB kit
  • DDR3 1333 MHz speed rated at PC3 10600
  • Low CL9 latency with 1.5 V operation
  • Unbuffered non-ECC 240-pin DIMM modules

System-Specific DDR3 Kit for OptiPlex 390

This Computer Memory Solutions kit delivers 4 GB of DDR3 memory in two 2 GB unbuffered DIMMs. Each module runs at 1333 MHz with CL9 timing at 1.5 V. The 240-pin design matches the Dell OptiPlex 390 memory slots exactly.

Ideal for OptiPlex 390 Refreshes

Suits owners restoring or upgrading a Dell OptiPlex 390 that needs a matched pair of non-ECC modules. Builders requiring ECC support, higher capacities, or faster DDR3 speeds should look at something else.

Drops Into Existing Slots

The pair occupies two DIMM sockets and leaves remaining slots free for further expansion within the platform limit. No heat spreader means standard clearance inside the OptiPlex 390 chassis.

Ready-to-Install Matched Pair

Supplied as a tested 2 x 2 GB kit so the system recognises dual-channel operation immediately. Major-brand chips and 1Rx8 organisation provide stable operation at the rated 10600 speed grade.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.25 per GB
Cheaper than about 83% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2566410600DIMM1R8
Total capacity4 GB (2 × 2 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsDell Optiplex 390
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does my Dell OptiPlex 390 need to accept 240-pin DDR3 DIMMs running at 1.5 V for this kit to work?

Yes. The kit consists of two 2 GB unbuffered non-ECC modules built to the 240-pin DDR3 standard at 1.5 V, which matches the OptiPlex 390 memory specification.

Can I keep any existing 1333 MHz DDR3 sticks installed while adding this 2×2 GB kit?

The system will run all populated slots at the lowest common speed and timing; mixing is possible but stability is best when all modules share the same 9-9-9 CL9 profile.

How can I confirm the full 4 GB is recognised at 1333 MHz after installation?

Enter the BIOS or use Windows Task Manager; both should report 4 GB total capacity and a memory speed of 1333 MHz with CL9 timings.

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